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Authenticity Verification API

Cyrify
Digital Evidence
Infrastructure

Cyrify is a digital evidence infrastructure for tamper-evident capture, device attestation, and an authenticity verification API for photos, videos, and files.

Explore API How it works
Cryptographic proof Device attestation Chain of custody
POST /v1/evidence/verify
// Response { "status": "VERIFIED", "integrity": { "sha256": "bb9e...4fd2", "signature": "MEUCIQD4xv..." }, "attestation": { "present": true, "provider": "device-attestation", "risk": "LOW" }, "provenance": { "chain_of_custody": ["capture", "gateway", "archive"], "anchored": true }, "proof_id": "prf_01hv2c9g4pwh9z2x6a" }
Lifecycle

Four steps to verifiable media

Cyrify's digital evidence infrastructure transforms raw media into auditable, verifiable proof objects through a clear four-step lifecycle.

01

Capture

Perform tamper-evident capture of photos, videos, and files with minimal context—timestamps and location hints.

02

Sign

Generate hashes and signatures with optional device attestation bound into a cryptographic proof payload.

03

Verify

The authenticity verification API recalculates hashes, checks signatures, and returns deterministic verdicts.

04

Anchor

optional

Anchor proof summaries to an append-only ledger, strengthening digital provenance and chain of custody.

Use cases

Verifiable media for real workflows

Cyrify provides content authenticity and digital provenance signals as verification middleware in your stack.

Insurance claims

Capture and verify claim photos with tamper-evident capture and device attestation, producing stable cryptographic proof objects that can be revisited during disputes.

Use deterministic verification outputs rather than ad‑hoc manual checks.

Marketplace verification

Add content authenticity signals to listings so moderation teams can flag potentially unverifiable or tampered uploads before they reach buyers.

Cyrify provides signals; you keep control of policy and UX.

Digital evidence

Build digital evidence infrastructure for field teams and investigators that aligns with internal policy on chain of custody without forcing any single storage stack.

Keep raw media in your own vaults; share proof objects where needed.

Content authenticity

Attach cryptographic proof and digital provenance to media at creation time so downstream platforms and auditors can independently verify claims.

Works alongside existing metadata, not as a replacement for governance.

API preview

Authenticity verification in one call

verify-evidence.sh
# Send verification request curl https://api.cyrify.com/v1/evidence/verify \ -H "Authorization: Bearer <api_key>" \ -H "Content-Type: application/json" \ -d '{ "media_sha256": "bb9e...4fd2", "proof_id": "prf_01hv2c9g4pwh9z2x6a", "attestation_token": "eyJhbGci..." }' # Response { "status": "VERIFIED", "integrity": { "sha256": "bb9e...4fd2", "signature": "MEUCIQD4xvGq..." }, "attestation": { "present": true, "provider": "generic-device-attestation", "risk": "LOW" }, "proof_id": "prf_01hv2c9g4pwh9z2x6a", "decision": { "summary": "Hash and signature match. Attestation valid.", "limitations": [ "Does not detect deepfakes.", "Relies on key management hygiene." ] } }

Deterministic outputs

Status values VERIFIED, UNVERIFIABLE, and TAMPERED describe cryptographic checks only—not a truth oracle.

Privacy-first

Raw media stays in your storage. Only hashes and proof summaries are processed for content authenticity checks.

Limitations

Cyrify improves assurance around digital provenance and integrity, but final decisions may require human review, domain expertise, and external evidence.

Security posture

Cyrify emphasizes cryptographic proof, chain of custody transparency, and repeatable verification logic over marketing claims of "perfect" authenticity.

Privacy-first

Architected so raw media remains in your storage. Only hashes and proof summaries are processed for content authenticity checks.

Deterministic verification

Same inputs + same policies = same result. The authenticity verification API returns structured, auditable, replayable outputs.

Limited preview

Request access to Cyrify

Describe your use case for digital evidence infrastructure, and we'll follow up with API details, rate limits, and integration guidance.

Preview only. We aim to respond within a few business days.